Organisms that aren’t food producers must be food consumers. This method of nutrition is described as heterotrophic (eating others). Consumers include: predators‚ parasites‚ scavengers‚ decomposers and some green plants (e.g. sundews‚ Venus flytrap‚ pitcher plants). The food sources may be all or any of: plants‚ animals‚ fungi or bacteria; either living or dead. The advantages of the heterotrophic method of nutrition are: the food usually contains all the appropriate chemicals needed by
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reasons for this infection. Possible reasons for an outbreak of Gastro Enteritis is poor hand hygiene‚ Virus ’s (e.g Astrovirus)‚ Medications (e.g Antibiotics) Bacteria (e.g Campylobacter bacterium) Chemicals (e.g lead poisoning) Parasites (e.g Giardia Lambila) Bacterial toxins ( e.g Staphylococcal) 2. Which groups of people are more at risk during this outbreak? Children and Chemo therapy treated patients with cancer are most at risk during the outbreak due to their low immune systems
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and may lead to a disease Microorganism A small (micro) living plant or animal that cannot be seen without the aid of a microscope A microbe Contributions TYPES of Microorganism Bacteria Fungi Protozoa Algae Viruses Multicellular Animal Parasites BACTERIA Very small‚ simple‚ unicellular Prokaryote (no nucleus‚ no membrane-bound organelles) Bacterial Cell Yersinia pestis (formerly known as Pasteurella pestis)‚ DYSENTERY Causative Agent: Shigella Dysenteriae Source: Feces of infected
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endocrine disorders (diabetes‚ hyperthyroidism)‚ blood disorders (anemia‚ Von Willebrand disease)‚ deafness‚ eye problems (cataracts‚ glaucoma‚ progressive retinal atrophy)‚ respiratory disorders‚ giardia‚ parvovirus‚ distemper‚ upper respiratory infections‚ kennel cough‚ pneumonia‚ mange and intestinal parasites. Puppies often arrive at pet stores and homes with diseases or other problems because of the inhumane conditions of the puppy
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|[pic] |Course Syllabus | | |College of Natural Sciences | | |SCI/162 Version 5 | |
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SCHEME OF EXAMINATION FOR B.Sc. (ZOOLOGY) SEMESTER SYSTEM w.e.f. Session 2011-12 Scheme of B.Sc. 1st Year Semester I Sr. No. 1. 2. 3. 4. 5. Paper code 1.1 1.2 P-101 2.1 2.2 Nomenclature Life and Diversity from Protozoa to Porifera and Cell Biology – I Life and Diversity from Coelentrata to Helminthes and Cell Biology – II Practical Marks+IA 40+10 40+10 40+10 40+10 40+10 40+10 300 Periods / week 4 4 4 4 4 4 Exam. Duration 3 hrs. 3 hrs. 3hrs. 3 hrs. 3 hrs. 3hrs. Semester II Life and Diversity
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ASSIGNMENT – LESSON 8 1. Explain in 2-3 sentences each‚ the role of water in the body for 5 different physiological processes. • Fluid intake and fluid excretion: There is usually a balance between intake and excretion of water. If the water balance becomes unbalanced‚ this can greatly affect various bodily functions such as blood pressure‚ blood sugar levels or brain function. This imbalance will also create a thirst reaction and by the time we perceive this‚ our body is already mildly
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stomach and the small intestine and resulting in acute diarrhea. It can be transferred by contact with contaminated food and water. The inflammation is caused most often by an infection from certain viruses or less often by bacteria‚ their toxins‚ parasites‚ or an adverse reaction to something in the diet or medication. Current death rates have come down significantly to approximately 1.5 million deaths annually in the year 200‚ largely due to the global introduction of oral rehydrationtherapy and
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There are no multicellular plants in the oceans Most are photosynthetic single cells Cambrian is in Paleozoic era Called Cambrian explosion‚ because in this 70 million years. We have an explosion of every multicellular organism. Wednesday October 31st‚ 2012 CAMBRIAN Phanerozoic Eon Eras: Paleozoic (most recent : 550 Ma until now) – multicellular organisms in the oceans The periods in the Paleozoic era are: Cambrian Ordovician: end is one of the 5 mass extinctions. So many organisms
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symptoms) to severe and fatal. The term infection does not have the same meaning as infectious disease because some infections do not cause illness in a host. Disease causing biologic agents include viruses‚ bacteria‚ fungi‚ protozoa‚ multi-cellular parasites‚ and aberrant proteins known as prions. Transmission of these biologic agents can occur in a variety of ways‚ including direct physical contact with an infectious person‚ consuming contaminated foods or beverages‚ contact with contaminated body fluids
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